public void TestEmptyEmailInput()
{
Merge merge = new Merge();
string input = "";
string result = merge.FindDomain(input);
string expected = string.Empty;
Assert.AreEqual(expected, result);
}
public void TestInvalidEmailInput()
{
Merge merge = new Merge();
string input = "test.erz.be.ch";
string result = merge.FindDomain(input);
string expected = string.Empty;
Assert.AreEqual(expected, result);
}
public void TestRegexPattern()
{
Merge merge = new Merge();
string input = "*****@*****.**";
string actual = merge.FindDomain(input);
string expected = "erz.be.ch";
Assert.AreEqual(expected, actual);
}